Audio plug and an audio adapter thereof

Abstract

An audio plug for mounting on a printed circuit board, comprising: an insulative housing; a plurality of contacts, each of them being comparted by the insulative housing, wherein each contact has a front portion for mating with an audio jack and a back portion, said back portion has a plurality of welding portions with flat welding plates for welding the audio plug to the printed circuit board. Welding the PCB with the welding plates instead of welding cable saves the materials and spaces; and the flat welding plates with more area than the traditional audio plug makes the welding easier; the PCB is harder than the cable that makes the audio plug strength.

1 . An audio plug for mounting on a printed circuit board, comprising:
 an insulative housing;   a plurality of contacts, each of them being comparted by the insulative housing,   wherein each contact has a front portion for mating with an audio jack and a back portion, said back portion has a plurality of welding portions with flat welding plates for welding the audio plug to the printed circuit board.   
   
   
       2 . The audio plug as claimed in  claim 1 , wherein the welding portion and the contacts are integrally formed. 
   
   
       3 . The audio plug as claimed in  claim 1 , wherein the welding portion has a circular main portion, and a flat welding plate is formed on an end of the circular main portion. 
   
   
       4 . The audio plug as claimed in  claim 3 , wherein the circular main portion is sleeving on the back portion of the contact. 
   
   
       5 . The audio plug as claimed in  claim 1 , wherein the welding plates are on the same side of the printed circuit board to welding the audio plug on the printed circuit board. 
   
   
       6 . The audio plug as claimed in  claim 1 , wherein there are three welding plates at least, in one plane, two of them on one side of the axis of the circular main portion, the rest of them on another side. 
   
   
       7 . An audio adapter with an audio plug, comprising:
 a printed circuit board;   an adapter connector, welding on said printed circuit board;   an audio plug, welding on said printed circuit board, and connecting to the adapter connector electrically, has contacts, each of them is comparted by insulative housing, and the end of the each contact of the audio plug welding to the printed circuit board has a flat welding plate.   
   
   
       8 . The audio plug as claimed in  claim 7 , wherein the welding plates and the contacts are integrally formed. 
   
   
       9 . The audio plug as claimed in  claim 7 , wherein the welding plate are extending from a circular main portion. 
   
   
       10 . The audio plug as claimed in  claim 9 , wherein the circular main portion is sleeved on the back portion of the contact. 
   
   
       11 . The audio plug as claimed in  claim 7 , wherein the welding plates are on the same side of the printed circuit board to fix the audio plug on the printed circuit board. 
   
   
       12 . The audio plug as claimed in  claim 7 , wherein there are three welding plates at least, in one plane, two of them on one side of the axis of the circular main portion, the rest of them on the other side. 
   
   
       13 . An electrical connector assembly comprising:
 a printed circuit board defining a mounting surface thereon;   a columnar plug formed by a plurality of tubular conductors circumscribing one another with different diameters thereof, respectively; and   said tubular conductors having respective tail sections respectively located at different axial positions along an axial direction and exposed at different levels above the printed circuit board;   said tail sections including extensions extending and soldered to the mounting surface of the printed circuit board; wherein   said extensions have different lengths, in a height direction which is perpendicular to both the axial direction and the mounting surface of the printed circuit board, from one another essentially with a reverse proportion relation with the corresponding diameters.   
   
   
       14 . The electrical connector assembly as claimed in  claim 13 , wherein another connector is mounted on another side of the printed circuit board opposite to said plug. 
   
   
       15 . The electrical connector assembly as claimed in  claim 13 , wherein each of the inner conductors only has one extension soldered to the printed circuit board, and said extensions are alternately arranged with one another along said axial direction.